Gerry Stahl teaches, publishes and conducts research in human-computer interaction (HCI) and computer-supported collaborative learning (CSCL). His recent book, Group Cognition: Computer Support for Building Collaborative Knowledge was published by MIT Press. He is founding Executive Editor of the International Journal of Computer-Supported Collaborative Learning (ijCSCL), published by Springer. He has contributed chapters to two edited volumes of the Springer CSCL series. He is the Principal Investigator of the Virtual Math Teams Project, a large 5-year research effort in collaboration with the Math Forum @ Drexel. He served as Program Chair for the international CSCL ’02 conference, Workshops Chair for CSCL ’03, CSCL ’05, ICCE ’06 and CSCL’07. He teaches undergraduate, masters and PhD courses in HCI, CSCW and CSCL at the I-School of Drexel University in Philadelphia. See CV for more details, at: http://www.cis.drexel.edu/faculty/gerry/resume.html.